Date: Thu, 17 Dec 1998 07:40:00 -0500 (EST) From: Troy Settle <rewt@i-Plus.net> To: "(ML) FreeBSD ISP" <freebsd-isp@FreeBSD.ORG> Subject: Re: Aliased IPs Message-ID: <Pine.BSF.3.96.981217071724.2973A-100000@Radford.i-Plus.net> In-Reply-To: <Pine.BSF.4.05.9812171028030.5340-100000@carmel.diva.nl>
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Ya know, the days of being able to get IPs at the drop of a hat are indeed over. But, not because we're running out. I'd hazard to say that as much as 40% of all IP space is still unallocated. What then, is the purpose of conservation? It's simple, go to your router, and do a 'sh ip bgp'. That should tell you everything you need to know about why IP conservation is a good thing. When we recently got our new T1, our provider gave us a /22. I quickly renumbered into it, and found that I still needed another /24 so that I could assign each virtual web site a unique address. My upstream didn't even bat an eye at this, and gave me another /22 based on the fact that I had already been efficient in how I used the first one. If you want to talk about inefficient use of IP space, look at the people who still hold their Class-{A,B,C} networks. Having this portable space is insane, especially when a university has 2 Class-B networks, and then subnets it out so that a lab with 24 workstations has a full /24. A Class-A has >16 million addresses. Can anyone on this list suggest any organization that can make _efficient_ use of it? No? Didn't think so. -- Troy Settle <st@i-Plus.net> Network Administrator, iPlus Internet Services http://www.i-Plus.net On Thu, 17 Dec 1998, Michiel Boland wrote: > On Wed, 16 Dec 1998, Dan Busarow wrote: > > > On Wed, 16 Dec 1998, N wrote: > > > I definitely *won't* have any problems when I deplete my assigned IP space > > > and go to RIPE (living in Europe) to request more. You *will* have > > > trouble getting new space if you've assigned all of your space to web > > > hosts to cater for a very, very tiny minority of people who can be easily > > > taken care of just as easily and almost as transparent in other ways. > > > > Not true. ARIN, on this side of the pond, recognizes web sites as > > valid uses of IP space. Too many services common to web sites > > (ftp, RealAudio/Video, LivePicture ...) require unique IPs for > > virtual hosts. > > This argument is not entirely correct. Just because someone needs a unique > number to host realaudio/whatever does not mean that he/she also needs a > unique number for his/her web site. I would be *very* surprised (not to > mention appalled :) if the practice of handing out IP addresses *just* for > virtual HTTP servers is actually condoned by ARIN. > > -- > Michiel Boland <boland@diva.nl> > Digital Valley Internet Professionals > Duivendaal 4, Wageningen, The Netherlands > Phone: +31 317 465555, Fax: +31 317 460276 > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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